Help im lost with gauges

Hi i just got a 90 civic dx 1.5 basically for free. I replaced the cv halfshafts, plugs and wires, valve cover gasket and spark plug seals, air filter, pcv filter, and oil change. The car seems to be running good however i need to know how to hook up these mechanical gauges for oil pressure and water temp. I know it is stupid but i cant find a place to put the water temp gauge other than where the computerized one is for the car already. And as far as oil pressure im completely lost on where that is on this engine. Please help me!

Thanks guys.

im pretty sure the oil pressure sensor is on the back of the block underneith the intake manifold. but not for sure. it is really hard to get to unless you are really skinny and flexible

any other help such as where to put the temp gauge, id like to run it as oil temp if posible, let me know please! thanks

Joe